Type-writing machine.



G. B. CORGORAN.

TYPE WRITING MACHINE.

APPLIOATION FILED MAY s 1, 1912.

' 1,067,318. Patented July 15, 19.13.

FIG. 4. a

WITNESSES! unrrnn STATE$ PATENT oFFIoE.

CORNELIUS ,B. CQRCORAN, NEW YORK, N. Y., ASSIGNOR TO. UNDERWOOD TYPE-WBITJER COMPANY, OF NEW YORK, N. 1., A COBJPORATION'OF DELAWARE.

rYrn-wnirmo MACHINE.

Specification of Letters Patent.

\ fication.

This "invention relates to letter-spacing mechanism oftypewriting'machines, whereby the carriage ay be advanced more than onespace "time."

At the end of a sentence it is customary to" leave two or three andsometimes even four or five letter-spaces, before beginning the nextsentence. In the usual type of machine, the operator hasto depress thespace- I framework. A-lmk 6- extends from rthe opkey o'ri'fespondingnumber of times. Theobject of the present invention is provide meanswhereby a single depression of" akey will cause the carriage to ad-Vance a predetermined plurality of letter spaces independent, except aslimited by the range of the carriage travel, of the position of thecarriage at the time when the key-is depressed, a

A key, which is independent of theprinting mechanism and mayfor'conveniencebe called a multiple-space or carriage-jumping key, isprovided upon the keyboard, which 'key' is connected so as to raise apinion.

mounted. upon an arm into mesh with the feed rack of the carriage, so asto lift the same off from the. escapement pinion. The

icarriage thus freed is advanced by its impelling spring until thepinion, which may be .termed .the multiple-space pinionris arrested byan adjustable stop. mounted upon the arm. The key is then released,whereupon the feed rack reengages the escapement pinion and themultiple-space pinion "is returned to it's original position by aspring. By adjusting the stop upon the "arm to the ,properposit'ion, thecarriage may be caused to advance any desired number of spaces.

In the accompanying draw ngs, Figural ent invention applied thereto.

' sition of the multiple-space pinion when out of engagement with thefeed rack. Fig. 3

1s a View similar to Fig.2, illustrating the multiple-space pinion inengagement with the feed rack, the latter having been lifted PatentedJuly 15, 1913.

off from the escapement pinion' and advan'ced several spaces. Fig. 4- isa plan showing m-detailthe pinion mounted in the fcrked arm of a 'lever'which, is connected to the multiple-space key. Fig. 5 is a perspectivedetail view of the pinion and its returning spring. i

- The multiple-space key' 1 is mounted on a bar 2 which may be fulcrumedon fulcrum rod'j2 together with'the other key bars of the'maohine. Alink 3 extends from the bar 2 to one arm of a bell-crank 4 fulcrumedupon a suitable bracket 5, attached to the posite arm of the bell-crankto another bellcrank 7 having a forked arm .8 in which is mounted apinion 9., which is adapted to ofi' from the pinion 12 of the.escapement' mechanism. When the key l-is depressed and, through theconnections above de-- scribed, the carriage is lifted free from theescapement pinion, the impelling spring of the carriage advances thelatter a number of spaces as determined by the extent of rotation of themultiple-space pinion 9. v

The extent of rotation of the .pinion 9 is determined by an adjustablestop 13 consisting of a screw which may be inserted in one of a numberof aperturesli formed in one prong of t-he forked arm 8. This stop iscontacted by a cooperating projection or stop 15 secured to the pinion9.

A spring 16 normallymaintains the'pinion in retracted position, holdingthe projection 15 in engagement with a fixed stop 17 a secured to theforked arm. One end of this spring may be conveniently attached to the,projection 15 and the'other to the' stationary screw or pin 18 uponwhich the pinion rotates.

The apertures 14 may be positioned so as to/correspond to letterspacesof the car-Y riage. 'Thus, if the stop. is placed in the "firstaperture,the depression-of the multiplejspace :key -.will cause the carriage.i'eed forward two spaces; if the'stop is placed in the second aperturethe carriage will feed or jump forward three spaces, and so on. Theposition of these apertures may also so be chosen that, when themultiplespace key is released after the carriage has been fed forward,the feed rack will be in proper position to mesh with the teeth of theescapementj pinion. Variations may be resorted towithin the scope of theinvention, and portions of the improvements may be used' without others.

Having thus describedmy invention, I claimi v f 1. In a typewritingmachine, a carriage, a feed rack connectedv thereto, escapementmechanism, a pinion movable into. engage: ment with the rack to lift thesame oil from the escapement mechanism, and a stop mounted adjacent tosaid pinion to l imit the rotary movement thereof;; said stop adjustable to vary the number of letteraspaces throu h which thecarriage.jumps.' 2. n a typewriting machine, a carriage, a feed rackconnected thereto, escapement mechanism, a pinion movable intoengagement with therack to liftthe-same ofi from the escapementmechanism, two. stops mounted adjacent "the pinion, apro'ection saidstops, and a spring holding the projec:

on the pinion adapted to e ge eit er of ti-on against one ofjsa stopsing relatively adjustable. I

3. In a typewriting machine, a' carriage, a feed rack thereto,.eecapement stops be mechanism, a pinion movable into engagement withthe rack to lift the same ofifrom the escapement mechanism, a fixed stopand an adjustable stop mounted. adjacent the 40 pinion, a projection onthe pinion adapted: to engzge either; of said stops, and a spring adapteto hold the projection one of said stops I p a v I i 4. In a typew 'tingmachine, a carriage," a feed rack connected thereto, escapementmechanism, anrarm mounted adjaoent'to the .rack, a pinion mounted on thearm, a plurality of apertures insaid arm, a stoppin adjustable in any ofthe apertures, a projece' tionon the plnion adapted to engage the stopto limit the rotary-movement of the pinion, and means for actuating thearm so 4 as to bring the pinlon into enga ement. with the rack to liftthe same free capementmechanismf 5. In a typewritingimachine, acarriage, a.feed rack connected. thereto, escapement mechanism, an armmounted adjacent to the ,rack,'a pimon mounted on the arm, a pluralityof apertures in said'arm, a stop pin adjumble in any of the apertures, arojection from the esv on the inion adapted to enga e o to limit therotary movement oi the gin ion,

means for actuatingthe arm so as to bring the pinion'into engagementwith the rack to;

6. In a typewriting machine, a carriage,

a feed rack, escapement mechanism, a forked bell'crank mounted adjacentthe rack, a pin-- ion mounted on thebell-"crank, a pro ection formed onthe pinion, a fixed stop and an adjustable stop onthe bell crankadapted. to

be engaged by said projection, a spring for holding said projectionagainst one of said stops, :1 link connected to said bell crank,. and akey mounted on the keyboard connected to said -link.

1 [7. In atyp'ewriting machine, a. carriage,

a feed rack, escapement mechanism, a'forked bell crank mounted adjacentthe rack a pinion mounted on the bell crank, a projection formed on thepinion, a fixed sto and an adjustable stop 'on the bell crank a apted.to

be engaged by said projection, a spring-for holding said projection aainst the fixed,

stop, a link connected to sai bell crank, and

a key mounted onthe keyboard connected to said p U I 8; In a typewritingmachine,va carriage,

letter-feeding mechamsm therefor, and.

carriage forward a uniform? numberof .ni eans for releasing thecarriagefrom the letter-feeding mechanism and-gjumping'the, I

ment-from' substantially any position of the" arresting the carriage ajumping a uniform number of spaces from substantiallyany position of thecarriage and adjustable means .for varying'the number of s "aces to be.jumpedat the operation of said Key.

10. In'a typewriting machine, a carriage,

carriage its travel, said means including 2 a. art ad iistable todetermine .thenumber.

10b" ewritmg machine, a carriage, a feed rack connected thereto,escapement a feed rack connected thereto, escapement' mechanismincluding. a lifting the rack off from t e pimon, a second pinion, andanadjustable stop'for cooperat inion, means for ing with the secondpinion toarrest the carriage afterjumping'a variable number of v spacesfrom substantially any: position of. t ecarriage.

'11 The combination of a'power-driven carr1age,-a device movable by saidcarriage V but normally disconnected therefrom, a carriage-jumping keyindependent of the printing devices and connected to. said movabledevice to connect it to the carriage, means adjustable to'determine thenumber of letter-spaces said movable device shall be moved by saidcarriage, and a.letter-feeding mechanism releasable by. said key.

105 able stop brought-i810 by'said key for Y 12. The combinationcarriage haying a hsengaged from "said r rack ln-gkey independent; ofthe printing devices 5 aqd connected to sa id wlth saidrack 0 arrearring; having avlette 1e b'ysaid key,

releasa pinion to engage it est the carriage, said r-feeding mechanismand means adjustable letter-spaces umped by the carriage while drivingsaid 16 CORNELIUS B. CORQORAN Witness'ess- C. "RIPLEY,

F. E. ALEXANDER.

